each time nelson mandela is hospitalized there is cause for concern. yet each time so far he's managed to beat the odds. so in the same kind of resill yeferns he has all his life. and here and around the world people will be hoping he does it again. >> mark philips cbs news, pretoria. >> venezuela president hugo chavez is returning to cuba for treatment for a third time for cancer treatment. chavez supporters turned out in dismay after the announcement which included word that chavez for the first time has named a successor in case he can't return. >> later, a homecoming for items pilfered from one of the world's most famous hotels. as a kidnapped american doctor is rescued in afghanistan today, we take a deeper look at how u.s. and afghan special forces are trying to work together. and a treatment that offers new hope for children with leukemia. those stories when the "cbs evening news" continues. bayer aspirin was the first thing the emts gave me. now, i'm on a bayer aspirin regimen. [ male announcer ] be sure to talk to your doctor before you begin